SmmPciRbIo

Overview

SMM PCI Root Bridge I/O access driver. The recovered code provides a PCI
configuration-space abstraction that can run from SMM, including legacy
CF8/CFC access, PCIe enhanced configuration, bus translation, and teardown
paths for runtime and S3 resume.

Key Functions

• ModuleEntryPoint - SMM entry; library init and PCI RbIo setup
• SmmPciRbIoLibraryConstructor (recovered from sub_544) - AutoGen library constructor
• SmmPciRbIoInitialize (recovered from sub_1148) - core PCI Root Bridge I/O initialization
• SmmPciRbIoLibraryDestructor (recovered from sub_1530) - library destructor
• SmmPciRbIoUnload (recovered from sub_340) - manual unload handler
• SmmPciRbIoFailurePath (recovered from sub_1664) - failure-path handler
• SmmPciRbIoNeedsInitialization (recovered from sub_2A0) - early PCI configuration-space enumeration
• SmmPciRbIoAssertionFailure (recovered from sub_14F0) - assertion/guard path retained from AutoGen

Protocols

• SmmBase2
• SmmPciRbIo
• SmmCpuIo2

Recovered Symbol Mapping (module-local)

• qword_3098 -> mSmmPciRbIoStatus
• unk_2FA0 -> mSmmPciRbIoContext

Platform

HR650X BIOS SMM infrastructure, AmiModulePkg/PCI/SmmPciRbIo